Celtic pay the penalty
EVEN Real Madrid boss Carlo Ancelotti had to admit it was strange to be two goals in front through penalties.
Celtic can feel seriously unfortunate to have conceded two spot-kicks in a tough first half in Spain.
There's no doubt Moritz Jenz and Matt O'Riley's handball incidents were accidental - but similarly there is no dispute the ball hit their arm.
Jenz was caught out by a Fede Valverde mishit and O'Riley was trying to pull his arm clear when it bounced up and struck his forearm.
Both calls - under the rules were correct - but are certainly tough to take for Ange Postecoglou's men.
Scoring struggles plague Euro campaign
ANGE POSTECOGLOU highlighted his side's inability top score as the story of Celtic's Champions League campaign.
It was certainly the case again at the Santiago Bernabeu.
Celtic created a host of chances but struggled to make them pay with Josip Juranovic's penalty miss and Kyogo Furuhashi's first-half effort straight at Thibaut Courtois obvious examples.
Jota did eventually net for Celtic in the closing stages with a stunning free-kick, but again Celtic could, and should, have been better in front of goal.
Real Madrid demonstrate gulf in quality
REAL MADRID are the reigning Champions League champions. And in a thumping win, they showed their quality.
The 5-1 rout was another reminder of the levels Celtic must achieve if they are to compete with the best Europe has to offer.
Results against elite sides such as Real Madrid won't make or break European campaigns for Celtic, but too often Celtic have been just a little off the pace in Europe.
However, Postecoglou's ethos was carried out by the Celtic squad and while results were disappointing there are plenty of positives to take from the learning experience of Champions League group stage football.